Fountain pen



B. R. BELL ,FOUNTAIN PEN "June 30,. 1931.

Filed oct. 7, 1929 'i latentedfJu-ne 30,l `1931 i i i f 'UNITED srATssrATnNr o lfllCl-''.''lA

` 25 tribution of lits ink to the pen point- BENJJJnN ninnnn, or nAnrow, rnonmaoUNrAnr PEN f hppnoauen and catcher '1., im. serai .mesura-1 This invention relates to improvements in yond the material 18 for a cooperative openfountain ing of the replaceable .cartridge B, in a man-v' Y The primary object of this invention is the ner to be subsequently mentioned. f provision of a relatively sim le and econom- The cartridge B is preferably of glass, alical fountain pen construction having imthough it may be of metal, cellulold, hard 5s proved means associated therewith' for rerubber, or any improved material. It is prefceiving a detachable cartridge or reservoir, erably of about the same size as an Ordin which may be renewed from time to time upon rubber casing for a reillable typeI of convendesire `to rell the pen. y `tional fouhtaimpen. It is lof corse inherent- Other objects and advantages of this in- 1y rigid and com rises a cylindrical body 25 e0 vention will be apparent during the course having-a prefera ly flat bottom wall 26.A AtJ of the following detailed description. f its opposite end it Las a tapered neck 27 ter- In the accompanyingdrawings, forming minating in a restricted end 29 havin aa part of this specification, and wherein simimouth, 30, wherein a removable relatively lar reference characters designate correshallow sto per 31 is disposed. 'The stopper e5 sponding parts throughout the several views. 31 may be o cork or any other approved mateigure 1 is a verticalsectionalfview taken rial, and of a nature which will permit the longitudinally through the improved pen, same to be entirely usled through the mouth l showing the relation of parts asa new reserinto the tapere ne k portion of the res- 29 voir or cartridge is being assembled upon ervoir cartridge and thence into the cartridge 70 the pen. 'l If desired,the stopper may be of pu'neturable Figure 2 is a vertical sectional view` of the material.. pen partsafter the 'cartridge has been as- As for the application of the cartridge B, sembled upon vthe pen, 4and is ready for disthe same isv slipped into the body 10 of the barrel of the fountain p n, with the'tapered 75 Figure 3 is a fragmentary sectional view neck foremost, and duev the centered relashowlng the outer stopper end of the cartion which it occupies in the barrel body 10, tridge. A preferably quite snugly fitting' therein so In 'the drawings, wherein is shown only a that there is very little play, except to permit 9 preferred embodlment of the invention, the the sliding of the same along the barrel, the 8d etter A may generally designate 'the imcork or stop er 31 comes into axial alignment proved pen, which consists of `a barreli .body with the p unger .15; the latter centering 10, of any approved material of which founagainst thestopperl and upon pressure at tam casings are made; the same` bein the' outer end of the cartridgeB, the stopper 35 cylin rcalin form and at itsu per end `pre will be forced by theplunger into the'car- S5 erabl internally screw threaded at 11,' for rtridge eB, as shown in an initial stepy in detachably receivin a pen holding .part'12. Figure 1, and will ultimately fall into the whereon a removal) e n point 13 may be cartridge to a position where the same will' associated, together withnizheusual distributor vnot obstruct the openend of the plungerl, 40 '(not shown). The end wall 14 of the part 12 as shown in Figure 2.,. 1 0o has a conduit or tubular lunger 15 extend- As a preferred means of enablingthe I ing therethrough into the ollowed end of the facile attachment-and detachment of t e reho der part y12, extending for considerable newable cartrid 'e it is preferred to externallength into this hollow or compartment, desly screw threa the lower outer en'd of the ignated at 17 in the drawings. In'the combarrel body 10, as shown at 40, and complef5 I partmeit or socket 17 surrounding' the mentary therewith is. an internal] screw plunger 15 is disposed some soft pliable matethreaded. cap 41, having a screw t readed.

. rial, such as soft rubber; preferabl of a nasocket 42. for seating'fon the screw threaded. ture which will act as a gasket. lie outer end 40. The socket opening 44 in the ca 41 52 or lower free end of the tube 15 prpjecta beterminates in :adead lower end at'thewa 45, 1.0

and Within the same upon the Wall 45 is seated a spiral compression spring 47, which is compressed against the cartridge B, as

the cap 41 screw threads in place'upon the body 10, from the position shown in' Figure 1, to the position shown in Figure 2, for the purpose of forcing the cartridge B in a piston-like action against the plunger 15, in order that the stopper 31 will be moved into the cartridge and permit `the ink vto iow through the passageway of the tube 15` and onto the distributor and pen point.

It is to be particularly noted that when the cartridge B is firmly seated in place u on the barrel, the tapered neck end `thereof as been forced by the compressed spring 47 into the yieldable gasket material a leak-proof connection therewith, preventing leakage of ink into the barrel and along the tube 15, since it is noted that When fully seated the extreme edge of the end 29 of the cartridge lies spaced fromthe Wall 14, and which space is illed by the packing material 18 surrounding the tube 15 in a leak-proof Contact.

Various changes in arrangement of parts may be made to the form of invention herein shown and described, Without departing from the spirit of the invention or vthe scope of the claim.

I claim:

In a fountain pen of the class described a barrel including a pen point holding structure having a feed tube extending freely into the barrel for a substantial distance, and a .removable cartridge for the barrel including a tapered'neek with a restricted mouth into which the feed tube may snugly removable stopper in said mouth, the .cartridge when fully inserted in `the barrel with the feed tube therein having a space between'the feed tube at its free end and the lateral Walls of the cartridge AWhich is greater measured in any,radial direction `than the diameter of the' mouth ofsaid cartrid e, .l

into t e whereby the stopfpxer when pushed cartridge'during t e assemblage ofthe latter into the barrel and on the feed tube will lie laterally of the tube'after assemblage of parts to prevent obstruetionof flow of ink the BENJAMIN R. ABELL.

17 forming the shape, size, and 

